Headed knob for carriages



YUNITED STATES PATENT OFFICE.

CHESTER O. UPHAM AND LAWYER F. UPHAM, OF HYDE PARI-, MASSACHUSETTS.

HEADED KNOB FOR CARRIAGES, 80C.

SPECIFICATION forming part of Letters Patent No. 454,549, dated J' une 23, 1891.

Application tiled J une 23, 1890.

To all .whom t may concern:

Be it known that we, CHESTER O. UPHAM and LAWYER F. UPHAM, of Hyde Park, county of Norfolk, State of Massachusetts, have invented an Improvement in Headed Knobs for Carriages, the., of which the following description, in connection with the accompanying drawings, is a specification, like letters and figures on the drawings representing like parts.

Prior to this invention fastening posts or studs have been engaged by eyelets set iii flexible material, instances of which are familiar in carriage and other curtains and in gloves. Commonly in curtain-work the curtain has an eyelet-hole re-enforced by a small piece of leather or cloth or by overstitching, as in a button-hole, and the post has been entirely of metal and has had an enlarged head and integral iiaiiged body fast on a screw, or has been provided with a corrugated body of flexible material.

In accordance with our invention the body of the post is composed of a non-metallic sniootlrsurfaced yielding` material which is interposed between the annularly grooved spherical head of the shank 'of the post and the material oii which the body is seated. The flexible material to be engaged and held by this post will preferably be provided with a metallic grominet or eyelet, the inner portion of which engages the non-metallic smoothsurfaced yielding body of the post.

Figure l shows one of our improved fasteningstuds; Fig. 2, a portion of a curtain having a metallic grommet or eyelet to engage said post; Fig. 3, a longitudinalseetion through the stud with the gronimet upon it, and Fig. 4C shows partof a jaw for engaging' the head of the screw-stud shown in Fig. 3.

IVe have illustrated our invention as applied to a carriage and to a glove, but do not intend to limit the use thereof to only these purposes.

Referring to the drawings, Fig. l, A' is supposed to represent one of the bows of a car- Serial No. 356,333. (No model.)

riage-top covered with leatherat a, and ref erring to Fig. 2, B shows part of a curtain .with a metallic grommet or eyelet h set therein.

The shank of the stud in Figs. l and 3 is represented as a screw c, having a head d (shown in said figures as spherical) and provided with an annular groove e at its periphery. This annular groove serves the purpose of the usual nick in the screw, and to insert or remove the same from the bow the said groove may be entered by lips 2, extended horizontally toward each other, of spring-Jaws f, as represented in Fig. 4.

The body g of the stud is represented as a collar of non-metallic material, preferably iiidia-rubber in a partially fieXible and yielding state or condition, and preferably, but not necessarily so, the said collar or body may have a flange 4: at one end to bear against the material. In this condition when the groinmet or eyelet l) is applied to the body, as in Fig. 3, the groniniet engages the soft or nonnietallic body and clings to it, the friction or adhesion between the two being sufficientto retain them in engagement. as shown in Fig. 3. Preferably the body g will be of soft vulcanized india-rubber of the nature ot' socalled velvet rubber.

IVe claiml. The screw having a spherical head provided with an annular groove at its periphery, substantially as described.

2. The screw provided with a spherical head d, havi ng an annular groove and asmoothsurfaced yielding non-metallicl body thereon provided with a ange 4 at its base, substantially as described.

In testimony whereof we have signed our names to this specification in the presence of two subscribing witnesses.

CHESTER C. UPIIAM. LAWYER F. UPHAM. lVitnesses:

GEORGE W. CHAPMAN, CHARLES E. J ENNEY. 

